| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a structure that keeps the inner surface of an EGR cooler device in a state that the soot of exhaust gas does not adhere by a simple and effective method. <P>SOLUTION: A structure for recirculating the exhaust gas of a combustion engine includes a return line 11 for returning the exhaust gas to the combustion engine, EGR cooler devices 14, 15 for cooling the exhaust gas before being guided to the combustion engine, a container device 15c for collecting condensates generated in the EGR cooler devices, a line 24 for interconnecting the container device 15c to an exhaust gas flow passage unit of the EGR cooler devices, and a driving means for guiding the condensates from the container device 15c to the exhaust gas flow passage unit of the EGR cooler devices. The driving means includes a sensor 27 for detecting a condensate level, in a bottom 15d of the container device 15c, and a pump 25 of which the drive is controlled based on information from the sensor 27. <P>COPYRIGHT: (C)2012,JPO&INPIT |
